The literary and artistic turn in philosophy is actually the marriage between literature, art and philosophy arising from the crisis of metaphysics. It is also the general trend of contemporary theory and creation in the West and especially in France. However, when philosophy departs from logic for literature and art for the sake of experience, how could the intrinsic differences between them be resolved? In his journey from literature and art to philosophy, Deleuze, as evidenced by his Proust and Signs, takes the original drive for philosophy as the primary force for literary and artistic creations by default, thus leading to an insuperable paradox in aesthetics. This is why, on the one hand, Proust and Signs gives a new philosophic perspective on literature and art and on the other, Deleuze cannot reach his goal because of the dissimilarities and incommensurability between philosophy and literature as well as art.